TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.14.1.003
TI  - Pauli crystal melting in shaken optical traps
PY  - 2023/01/13
UR  - https://scipost.org/SciPostPhys.14.1.003
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 14
IS  - 1
SP  - 003
A1  - Xiang, Jiabing
AU  - Molignini, Paolo
AU  - Büttner, Miriam
AU  - Lode, Axel U. J.
AB  - Pauli crystals are ordered geometric structures that emerge in trapped noninteracting fermionic systems due to their underlying Pauli repulsion. The deformation of Pauli crystals - often called melting - has been recently observed in experiments, but the mechanism that leads to it remains unclear. We address this question by studying the melting dynamics of $N=6$ fermions as a function of periodic driving and experimental imperfections in the trap (anisotropy and anharmonicity) by employing a combination of numerical simulations and Floquet theory. Surprisingly, we reveal that the melting of Pauli crystals is not simply a direct consequence of an increase in system energy, but is instead related to the trap geometry and the population of the Floquet modes. We show that the melting is absent in traps without imperfections and triggered only by a sufficiently large shaking amplitude in traps with imperfections.
ER  -

@Article{10.21468/SciPostPhys.14.1.003,
	title={{Pauli crystal melting in shaken optical traps}},
	author={Jiabing Xiang and Paolo Molignini and Miriam Büttner and Axel U. J. Lode},
	journal={SciPost Phys.},
	volume={14},
	pages={003},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.14.1.003},
	url={https://scipost.org/10.21468/SciPostPhys.14.1.003},
}